Opta's definition is:
Pattern of play for Goals/Attempts
Set Piece goals/attempts are those where the ball starts from a dead ball situation such as a corner, a free kick, a penalty or a Throw-in and results in a shot before the phase of play has broken down into open play.
The exact point at which it becomes open play is usually clear but set pieces which are cleared and then the ball is put straight back into the penalty area are still deemed to be part of the set piece as the defending team is still positioned to deal with the set play.
- See more at:
http://optasports.com/news-area/blog-optas-event-definitions.aspx#sthash.TSN9EwRZ.dpuf
Opta have us down as having scored four goals from crossed free kicks (none from direct) and three goals from corners. That's the most goals in the league from indirect free kicks and about average for corners. Only five teams in the league have scored from a direct free kick and only Liverpool and Chelsea have two goals from direct free kicks.
From all set pieces (including penalties) we have the seventh highest return this season. Emirates Marketing Project are running away with this with 13 goals (but four of these are penalties). You then have four teams with nine goals, two with eight and then us, Liverpool and Stoke with seven.
http://www.squawka.com/football-tea...any#any#season#1#all-matches#cross#desc#total